/*
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*/

#if !BESTHTTP_DISABLE_SIGNALR

using System;

using UnityEngine;

using BestHTTP.SignalR;
using BestHTTP.SignalR.Hubs;
using BestHTTP.SignalR.Messages;
using BestHTTP.SignalR.JsonEncoders;
using BestHTTP.Examples;

class DemoHubSample : MonoBehaviour
{
    readonly Uri URI = new Uri("https://besthttpsignalr.azurewebsites.net/signalr");

    /// <summary>
    /// The SignalR connection instance
    /// </summary>
    Connection signalRConnection;
    
    /// <summary>
    /// DemoHub client side implementation
    /// </summary>
    DemoHub demoHub;

    /// <summary>
    /// TypedDemoHub client side implementation
    /// </summary>
    TypedDemoHub typedDemoHub;

    /// <summary>
    ///  VB .NET Hub
    /// </summary>
    Hub vbDemoHub;

    /// <summary>
    /// Result of the VB demo's ReadStateValue call
    /// </summary>
    string vbReadStateResult = string.Empty;

    Vector2 scrollPos;    

    void Start()
    {
        // Create the hubs
        demoHub = new DemoHub();
        typedDemoHub = new TypedDemoHub();
        vbDemoHub = new Hub("vbdemo");

        // Create the SignalR connection, passing all the three hubs to it
        signalRConnection = new Connection(URI, demoHub, typedDemoHub, vbDemoHub);

        // Switch from the default encoder to the LitJson Encoder becouse it can handle the complex types too.
        signalRConnection.JsonEncoder = new LitJsonEncoder();

        // Call the demo functions when we successfully connect to the server
        signalRConnection.OnConnected += (connection) =>
            {
                var person = new { Name = "Foo", Age = 20, Address = new { Street = "One Microsoft Way", Zip = "98052" } };

                // Call the demo functions

                demoHub.AddToGroups();
                demoHub.GetValue();
                demoHub.TaskWithException();
                demoHub.GenericTaskWithException();
                demoHub.SynchronousException();
                demoHub.DynamicTask();
                demoHub.PassingDynamicComplex(person);
                demoHub.SimpleArray(new int[] { 5, 5, 6 });
                demoHub.ComplexType(person);
                demoHub.ComplexArray(new object[] { person, person, person });
                demoHub.ReportProgress("Long running job!");

                demoHub.Overload();

                // set some state
                demoHub.State["name"] = "Testing state!";
                demoHub.ReadStateValue();

                demoHub.PlainTask();
                demoHub.GenericTaskWithContinueWith();

                typedDemoHub.Echo("Typed echo callback");

                // vbDemo is not wrapped in a hub class, it would contain only one function
                vbDemoHub.Call("readStateValue", (hub, msg, result) => vbReadStateResult = string.Format("Read some state from VB.NET! => {0}", result.ReturnValue == null ? "undefined" : result.ReturnValue.ToString()));
            };

        // Start opening the signalR connection
        signalRConnection.Open();
    }

    void OnDestroy()
    {
        // Close the connection when we are closing this sample
        signalRConnection.Close();
    }

    void OnGUI()
    {
        GUIHelper.DrawArea(GUIHelper.ClientArea, true, () =>
        {
            scrollPos = GUILayout.BeginScrollView(scrollPos, false, false);
                GUILayout.BeginVertical();

                    demoHub.Draw();

                    typedDemoHub.Draw();

                    GUILayout.Label("Read State Value");
                    GUILayout.BeginHorizontal();
                        GUILayout.Space(20);
                        GUILayout.Label(vbReadStateResult);
                    GUILayout.EndHorizontal();

                    GUILayout.Space(10);

                GUILayout.EndVertical();
            GUILayout.EndScrollView();
        });

    }
}

/// <summary>
/// Wrapper class of the 'TypedDemoHub' hub
/// </summary>
class TypedDemoHub : Hub
{
    string typedEchoResult = string.Empty;
    string typedEchoClientResult = string.Empty;

    public TypedDemoHub()
        :base("typeddemohub")
    {

        // Setup server-called functions
        base.On("Echo", Echo);
    }

    #region Server Called Functions

    /// <summary>
    /// Server-called, client side implementation of the Echo function
    /// </summary>
    private void Echo(Hub hub, MethodCallMessage methodCall)
    {
        typedEchoClientResult = string.Format("{0} #{1} triggered!", methodCall.Arguments[0], methodCall.Arguments[1]);
    }

    #endregion

    #region Client Called Function(s)

    /// <summary>
    /// Client-called, server side implementation of the Echo function.
    /// When the function successfully executed on the server the OnEcho_Done callback function will be called.
    /// </summary>
    public void Echo(string msg)
    {
        base.Call("echo", OnEcho_Done, msg);
    }

    /// <summary>
    /// When the function successfully executed on the server this callback function will be called.
    /// </summary>
    private void OnEcho_Done(Hub hub, ClientMessage originalMessage, ResultMessage result)
    {
        typedEchoResult = "TypedDemoHub.Echo(string message) invoked!";
    }

    #endregion

    public void Draw()
    {
        GUILayout.Label("Typed callback");

        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.BeginVertical();
                GUILayout.Label(typedEchoResult);
                GUILayout.Label(typedEchoClientResult);
            GUILayout.EndVertical();
        GUILayout.EndHorizontal();

        GUILayout.Space(10);
    }
}

/// <summary>
/// A wrapper class for the 'DemoHub' hub.
/// </summary>
class DemoHub : Hub
{
    #region Private fields

    // These fields are here to store results of the function calls

    float longRunningJobProgress = 0f;
    string longRunningJobStatus = "Not Started!";
    string fromArbitraryCodeResult = string.Empty;
    string groupAddedResult = string.Empty;
    string dynamicTaskResult = string.Empty;
    string genericTaskResult = string.Empty;
    string taskWithExceptionResult = string.Empty;
    string genericTaskWithExceptionResult = string.Empty;
    string synchronousExceptionResult = string.Empty;
    string invokingHubMethodWithDynamicResult = string.Empty;
    string simpleArrayResult = string.Empty;
    string complexTypeResult = string.Empty;
    string complexArrayResult = string.Empty;
    string voidOverloadResult = string.Empty;
    string intOverloadResult = string.Empty;
    string readStateResult = string.Empty;
    string plainTaskResult = string.Empty;
    string genericTaskWithContinueWithResult = string.Empty;
    GUIMessageList invokeResults = new GUIMessageList();

    #endregion

    public DemoHub()
        : base("demo")
    {

        // Setup server-called functions
        base.On("invoke", Invoke);
        base.On("signal", Signal);
        base.On("groupAdded", GroupAdded);
        base.On("fromArbitraryCode", FromArbitraryCode);
    }

    #region Client Called Functions

    #region ReportProgress

    public void ReportProgress(string arg)
    {
        Call("reportProgress", OnLongRunningJob_Done, null, OnLongRunningJob_Progress, arg);
    }

    public void OnLongRunningJob_Progress(Hub hub, ClientMessage originialMessage, ProgressMessage progress)
    {
        longRunningJobProgress = (float)progress.Progress;
        longRunningJobStatus = progress.Progress.ToString() + "%";
    }

    public void OnLongRunningJob_Done(Hub hub, ClientMessage originalMessage, ResultMessage result)
    {
        longRunningJobStatus = result.ReturnValue.ToString();

        MultipleCalls();
    }

    #endregion

    public void MultipleCalls()
    {
        base.Call("multipleCalls");
    }

    #region DynamicTask

    public void DynamicTask()
    {
        base.Call("dynamicTask", OnDynamicTask_Done, OnDynamicTask_Failed);
    }

    private void OnDynamicTask_Failed(Hub hub, ClientMessage originalMessage, FailureMessage result)
    {
        dynamicTaskResult = string.Format("The dynamic task failed :( {0}", result.ErrorMessage);
    }

    private void OnDynamicTask_Done(Hub hub, ClientMessage originalMessage, ResultMessage result)
    {
        dynamicTaskResult = string.Format("The dynamic task! {0}", result.ReturnValue);
    }

    #endregion

    public void AddToGroups()
    {
        base.Call("addToGroups");
    }

    public void GetValue()
    {
        base.Call("getValue", (hub, msg, result) => genericTaskResult = string.Format("The value is {0} after 5 seconds", result.ReturnValue));
    }

    public void TaskWithException()
    {
        // This method call must fail, so only error handler added
        base.Call("taskWithException", null, (Hub hub, ClientMessage msg, FailureMessage error) => taskWithExceptionResult = string.Format("Error: {0}", error.ErrorMessage));
    }

    public void GenericTaskWithException()
    {
        // This method call must fail, so only error handler added
        base.Call("genericTaskWithException", null, (Hub hub, ClientMessage msg, FailureMessage error) => genericTaskWithExceptionResult = string.Format("Error: {0}", error.ErrorMessage));
    }

    public void SynchronousException()
    {
        // This method call must fail, so only error handler added
        base.Call("synchronousException", null, (Hub hub, ClientMessage msg, FailureMessage error) => synchronousExceptionResult = string.Format("Error: {0}", error.ErrorMessage));
    }

    public void PassingDynamicComplex(object person)
    {
        base.Call("passingDynamicComplex", (hub, msg, result) => invokingHubMethodWithDynamicResult = string.Format("The person's age is {0}", result.ReturnValue), person);
    }

    public void SimpleArray(int[] array)
    {
        base.Call("simpleArray", (hub, msg, result) => simpleArrayResult = "Simple array works!", array);
    }

    public void ComplexType(object person)
    {
        base.Call("complexType", (hub, msg, result) => complexTypeResult = string.Format("Complex Type -> {0}", (this as IHub).Connection.JsonEncoder.Encode(this.State["person"])), person);
    }

    public void ComplexArray(object[] complexArray)
    {
        // We need to cast the object array to object to keep it as an array
        // http://stackoverflow.com/questions/36350/how-to-pass-a-single-object-to-a-params-object
        base.Call("ComplexArray", (hub, msg, result) => complexArrayResult = "Complex Array Works!", (object)complexArray);
    }

    #region Overloads

    public void Overload()
    {
        base.Call("Overload", OnVoidOverload_Done);
    }

    private void OnVoidOverload_Done(Hub hub, ClientMessage originalMessage, ResultMessage result)
    {
        voidOverloadResult = "Void Overload called";

        Overload(101);
    }

    public void Overload(int number)
    {
        base.Call("Overload", OnIntOverload_Done, number);
    }

    private void OnIntOverload_Done(Hub hub, ClientMessage originalMessage, ResultMessage result)
    {
        intOverloadResult = string.Format("Overload with return value called => {0}", result.ReturnValue.ToString());
    }

    #endregion

    public void ReadStateValue()
    {
        base.Call("readStateValue", (hub, msg, result) => readStateResult = string.Format("Read some state! => {0}", result.ReturnValue));
    }

    public void PlainTask()
    {
        base.Call("plainTask", (hub, msg, result) => plainTaskResult = "Plain Task Result");
    }

    public void GenericTaskWithContinueWith()
    {
        base.Call("genericTaskWithContinueWith", (hub, msg, result) => genericTaskWithContinueWithResult = result.ReturnValue.ToString());
    }

    #endregion

    #region Server Called Functions

    private void FromArbitraryCode(Hub hub, MethodCallMessage methodCall)
    {
        fromArbitraryCodeResult = methodCall.Arguments[0] as string;
    }

    private void GroupAdded(Hub hub, MethodCallMessage methodCall)
    {
        if (!string.IsNullOrEmpty(groupAddedResult))
            groupAddedResult = "Group Already Added!";
        else
            groupAddedResult = "Group Added!";
    }

    private void Signal(Hub hub, MethodCallMessage methodCall)
    {
        dynamicTaskResult = string.Format("The dynamic task! {0}", methodCall.Arguments[0]);
    }

    private void Invoke(Hub hub, MethodCallMessage methodCall)
    {
        invokeResults.Add(string.Format("{0} client state index -> {1}", methodCall.Arguments[0], this.State["index"]));
    }

    #endregion

    #region Draw

    /// <summary>
    /// Display the result's of the function calls.
    /// </summary>
    public void Draw()
    {
        GUILayout.Label("Arbitrary Code");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(string.Format("Sending {0} from arbitrary code without the hub itself!", fromArbitraryCodeResult));
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Group Added");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(groupAddedResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Dynamic Task");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(dynamicTaskResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Report Progress");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.BeginVertical();
                GUILayout.Label(longRunningJobStatus);
                GUILayout.HorizontalSlider(longRunningJobProgress, 0, 100);
            GUILayout.EndVertical();
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Generic Task");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(genericTaskResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Task With Exception");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(taskWithExceptionResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Generic Task With Exception");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(genericTaskWithExceptionResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Synchronous Exception");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(synchronousExceptionResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Invoking hub method with dynamic");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(invokingHubMethodWithDynamicResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Simple Array");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(simpleArrayResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Complex Type");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(complexTypeResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Complex Array");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(complexArrayResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Overloads");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.BeginVertical();
                GUILayout.Label(voidOverloadResult);
                GUILayout.Label(intOverloadResult);
            GUILayout.EndVertical();
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Read State Value");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(readStateResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Plain Task");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(plainTaskResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Generic Task With ContinueWith");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            GUILayout.Label(genericTaskWithContinueWithResult);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);

        GUILayout.Label("Message Pump");
        GUILayout.BeginHorizontal();
            GUILayout.Space(20);
            invokeResults.Draw(Screen.width - 40, 270);
        GUILayout.EndHorizontal();

        GUILayout.Space(10);
    }

    #endregion
}

#endif
